package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.Result;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /*
     * 新增分类
     * */

    @PostMapping
    public Result<String> save(@RequestBody Category category) {

        log.info("category:{}", category);
        categoryService.save(category);
        return Result.success("新增分类成功");
    }

    @GetMapping("/page")
    public Result<Page> page(int page, int pageSize) {

        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);

        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();

        //添加排序条件，根据sort进行排序
        categoryService.page(pageInfo, queryWrapper);

        return Result.success(pageInfo); //只返回pageInfo是因为只有pageInfo是需要展示的
    }

/*
* 根据id删除分类
* */

    @DeleteMapping
    public Result<String> delete(Long ids){

        log.info("删除分类，id为：{}",ids);
        // categoryService.removeById(ids);

        categoryService.remove(ids);

        return Result.success("分类信息删除成功");
    }

    /**
     * 根据id来修改分类信息
     * @param category
     * @return
     */

    @PutMapping
    public Result<String> update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);

        categoryService.updateById(category);
        return Result.success("修改分类信息成功");
    }


    /**
     * 根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public Result<List<Category>> list(Category category){ //使用实体的方式来封装传回来的参数

        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(category.getType()!=null,Category::getType,category.getType());//Category::getType是从数据库中传值的方式，ccategory.getType()是获取到的具体的值
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);//优先使用sort来进行升序排序，没有的话再根据updatetime进行降序排序

        List<Category> list = categoryService.list(queryWrapper);
        return Result.success(list);

    }
}
